Constancy and variability of identified glomeruli in antennal lobes: computational approach in Spodoptera littoralis
| Autor: | Sebastian Minoli, Louise Couton, Jean-Pierre Rospars, Kiên Kiêu, Sylvia Anton |
|---|---|
| Přispěvatelé: | Unité de biométrie et intelligence artificielle de jouy, Institut National de la Recherche Agronomique (INRA), Physiologie de l'Insecte : Signalisation et Communication (PISC), Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National Agronomique Paris-Grignon (INA P-G), Unité de biométrie et intelligence artificielle de Jouy (MIA-JOUY) |
| Rok vydání: | 2008 |
| Předmět: |
Male
Histology Sensory system Olfaction [SDV.BC]Life Sciences [q-bio]/Cellular Biology Biology Spodoptera Models Biological COMPUTATIONAL NEUROANATOMY Olfactory Receptor Neurons Pathology and Forensic Medicine 03 medical and health sciences 0302 clinical medicine MOTH SPODOPTERA LITTORALIS (INSECTA) medicine Neuropil Animals Computer Simulation Functional studies Spodoptera littoralis 030304 developmental biology Glomerulus (olfaction) 0303 health sciences Olfactory receptor Staining and Labeling urogenital system THREE-DIMENSIONAL RECONSTRUCTION IDENTIFIED GLOMERULI Cell Biology Anatomy LEPIDOPTERE biology.organism_classification INSECTE medicine.anatomical_structure OLFACTION Pheromone RECONSTRUCTION 3D Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Cell and Tissue Research Cell and Tissue Research, Springer Verlag, 2009, 337 (3), pp.491-511. ⟨10.1007/s00441-009-0831-9⟩ Cell and Tissue Research, 2009, 337 (3), pp.491-511. ⟨10.1007/s00441-009-0831-9⟩ |
| ISSN: | 1432-0878 0302-766X |
| DOI: | 10.1007/s00441-009-0831-9⟩ |
| Popis: | International audience; The primary olfactory centres share striking similarities across the animal kingdom. The most conspicuous is their subdivision into glomeruli, which are spherical neuropil masses in which synaptic contacts between sensory and central neurons occur. Glomeruli have both an anatomical identity (being invariant in location, size and shape) and a functional identity (each glomerulus receiving afferents from olfactory receptor neurons that express the same olfactory receptor). Identified glomeruli offer a favourable system for analysing quantitatively the constancy and variability of the neuronal circuits, an important issue for understanding their function, development and evolution. The noctuid moth Spodoptera littoralis with its well-studied pheromone communication system has become a model species for olfaction research. We analyse here its glomerular organisation based on ethyl-gallate-stained and synapsin-stained preparations. Although we have confirmed that the majority of glomeruli can be individually identified in various antennal lobes, we have recognised several types of biological variability. Some glomeruli are absent, possibly indicating the lack of the corresponding receptor neuron type or its misrouting during development. The antennal lobes vary in global shape and, consequently, the spatial location of the glomerular changes. Although they do not prevent glomerulus identification when quantitative analysis methods are used, these variations place limits on the straightforward identification of glomeruli in functional studies, e.g. calcium-imaging or single-cell staining, when using conventional three-dimensional maps of individual antennal lobes |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink